A potato park has been established in the Sacred Valley of the Incas on an area of 39 square miles on a terrain varying between 3,400 to 4,900 metres above sea level. The idea is to see what types of potato grow best at different altitudes at a time when climate change is affecting the altitude at which various types of disease affect the potato.

The Guardian’s man in Lima, Dan Collyns, has written a good piece which will be of interest to the readers of the PSG articles. He argues that the common potato, of which there is a cornucopia of varieties and which originated in Peru some 7,000 years ago, could play a major role in assuaging world hunger in an age when climate extremes are increasingly the order of the day.